Service bulletins for the 2018 Toyota Sienna
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
300 on file from NHTSA, as of 2026-10-19.
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| T-SB-0032-20 | 2020-05-11. Service bulletin. EQUIPMENT. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. PG021-88, PG015-89, PG0015-90, PG002-91, PG002-93, PG005-97, PG007-01, PG007-07, PG006-01, PG004-97, T-SB-0144-08, and T-SB-0304-17. The aforementioned bulletins are obsolete, and any printed versions should be discarded. Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2020 model year vehicles may be available provided the requests meet the criteria listed in this Service Bulletin. Follow the Procurement Procedure in this bulletin to request a replacement certification label or VIN plate. |
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| T-TT-0600-20 | 2020-03-30. Service bulletin. EQUIPMENT:ELECTRICAL. TT: Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low. These settings may need to be reapplied any time the phone is paired to a new head unit, a phone update is applied, or the phone is un-paired and re-paired. |
| T-TT-0594-20_Rev | 2020-03-30. Service bulletin. EQUIPMENT:ELECTRICAL. TT: Some vehicles equipped with Dynamic Navigation may experience a pop-up message notifying them that their map update service will end soon. The date that is shown could be more than one year in the future. This does not indicate any issues with the vehicle, and is only informing the user of the expiration date. |
| T-SB-0039-19_Rev | 2020-02-24. Service bulletin. EQUIPMENT. TSB: REVISION NOTICE December 20, 2019 Rev1: ? The entire bulletin has been updated. Any previous printed versions of this bulletin should be discarded. NOTE This bulletin applies to 2018 model year Sienna vehicles ONLY if T-SB-0053-19 has been performed and completed prior to performing the Software Update Procedure in this bulletin. Some 2019 model year RAV4, RAV4 Hybrid, and Sienna vehicles equipped Audio Plus (version 1010) or Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: Toyota Apps fail to download ? Bluetooth® is unable to automatically connect AFTER key cycle ? Abnormal microphone operation ? Sirius XM® antenna disconnection history Diagnostic Trouble Code (DTC) B15FE ? No outgoing voice during phone calls when using Apple CarPlay® ? Incoming calls incorrectly shown on the multi-information display (MID) when using Apple CarPlay® ? CAN networking DTC B1321 ? Volume inoperative AFTER using Siri® ? Unable to adjust the treble audio setting ? Song information flickering ? Unable to select Sirius XM® music genre by voice recognition ? Noise when hanging up call on handset ? Transferred contacts do NOT match the number of handset contacts ? Sirius XM® sound slow to start ? Abnormal Toyota Apps and Scout Operation |
| T-TT-0520-19_Rev | 2020-02-18. Service bulletin. EQUIPMENT. TT: In certain cases of leaking air conditioning systems, the root cause of the leak is inadvertently overlooked, causing a repeat repair. To improve customer satisfaction and repair A/C system leaks in one dealer visit, Toyota has developed a set of guidelines for evaluating A/C system components. |
| T-SB-0008-20 | 2020-02-18. Service bulletin. EQUIPMENT. TSB: Vehicles may display evidence of a fluid leak or fluid seep from powertrain components. This bulletin explains how to determine the differences between a fluid leak versus a fluid seep. Cases that are determined to be a ?leak? should be repaired accordingly and will be covered under warranty if applicable. Cases that are determined to be a ?seep? should be documented on the repair order and inspected at the next service interval. Follow the Repair Information in this bulletin to determine if the concern in question is a fluid leak or fluid seep and review the Repair Procedure section to address the condition. NOTE This bulletin applies to ALL powertrain fluids excluding fuel and coolant. |
| T-SB-0047-19_Rev | 2020-01-13. Service bulletin. EQUIPMENT. TSB: REVISION NOTICE December 13, 2019 Rev1: ? Applicability has been updated to include several 2020 model year Toyota vehicles. ? The Required Tools & Equipment section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update; however, the process for generating license keys differs from previous generations. Before attempting to perform a map update, the head unit?s expiration date must be checked. If the expiration date is still valid, a license key may be generated without the use of an activation card number. Updating the maps without the use of an activation card number is considered an Embedded Navigation Update (refer to pg. 9) and performing this process does not extend the duration of telematic map services. If the head unit?s expiration date is expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an activation number. Utilizing an activation number will initiate a Dynamic Navigation Update (refer to pg. 3). This Dynamic Navigation Update will perform the Embedded Navigation Update and provide telematic map services for a period of two years from the day that the Dynamic Navigation Update is performed. Activation card numbers are provided in an activation card number pamphlet available through the normal parts ordering system. Follow the process in this bulletin to perform the update. |
| T-TT-0442-17_Rev | 2019-12-16. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active after the initial trial period. Once the subscription has expired the DCM (Telematics Transceiver) will be in an inactive state. In some instances, a DCM may need to be replaced even though the customer is not using the service. If registration of the replacement DCM part is attempted using the Techstream utility after the account has become inactive, the registration will fail, and messages such as ?ATX webserver is Down? or ?ATX error? will be displayed. |
| T-SB-0316-17_Rev | 2019-12-16. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. TSB: REVISION NOTICE November 14, 2019 Rev2: ? The Applicability has been updated to include 2019 model year Toyota vehicles. ? The Introduction and Repair Procedure sections have been updated. August 15, 2018 Rev1: ? The Applicability has been updated to include 2018 model year Highlander, Sienna, and Tacoma vehicles. ? The Introduction and Warranty Information sections have been updated. Any previous printed versions of this bulletin should be discarded. Some 2018 ? 2019 model year 2GR-FKS-equipped Camry, 2017 ? 2019 model year Highlander and Sienna, and 2016 ? 2019 model year Tacoma vehicles may exhibit a knocking noise from the vacuum pump with the engine idling. Follow the Repair Procedure in this bulletin to address this condition. |
| T-SB-0055-19_Rev | 2019-09-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. TSB: REVISION NOTICE August 09, 2019 Rev2: ? Step 25 of the Software Update Procedure section has been updated with a Note. May 28, 2019 Rev1: ? The Introduction and Software Update Procedure sections have been updated and the Software Download and Extraction Procedure has been added. Any previous printed versions of this bulletin should be discarded. The procedure in this Service Bulletin is a full reformat of the multimedia system. Failure to follow the procedure exactly as written may cause damage to the head unit. This reformatting changes the system from a Phase 2 to a Phase 3 system, which includes Apple CarPlay® and Amazon Alexa?. The reformat requires all linked files and folders extracted from the zip file to be placed onto the root directory of the USB flash drive, otherwise damage to the head unit will occur. NOTE Performing this update may change certain head unit operation conditions. For a full list of changes, see System Limitations and FAQ. |
| T-TT-0553-19 | 2019-09-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TT: The new DCA-8000 Diagnostic Charger may cause your facility?s Ground Fault Circuit Interrupter (GFCI) breaker to trip. A GFCI breaker can be tripped for various reasons, one of the reasons may be related to the DCA-8000. We are investigating this issue to determine the root cause. Other reasons the GFCI breaker may trip ? Circuit demand is too high for GFCI rating ? Worn out GFCI internal contacts ? Improper installation or wiring of GFCI breaker |
| ZJC-Toyota POL19 | 2019-09-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN. Customer Support Program Bulletin: Toyota has received reports indicating potential symptoms, such as a whine noise from the transmission while driving, harsh shifting, reduced power, and master warning light/check engine light illumination, in the subject vehicles that are equipped with a model UA80 transmission. There is a possibility that a washer tab, designed to prevent the loosening of a nut inside the affected transmissions, was not sufficiently bent during assembly. This could lead to the nut loosening and, over time, lead to the symptoms described above. |
| T-SB-0080-19 | 2019-09-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0033-14. ? Applicability has been updated to include 2019 model year Toyota vehicles. Service Bulletin No. T-SB-0033-14 is obsolete and any printed versions should be discarded. Some 2006 ? 2019 model year Toyota vehicles in particular geographic areas may exhibit a condition where the HVAC evaporator drain hose has become obstructed with an insect nest. An insect repellent drain hose tip (ARINIX® Tip) is available to help minimize future occurrences of this environmental condition. For some models, a new drain hose is required to properly fit the ARINIX® Tip. Follow the procedures in this bulletin for proper handling and installation of this optional service part. NOTE The ARINIX® Tip is NOT registered or labeled for sale or use outside the United States or Puerto Rico. |
| T-SB-0076-19 | 2019-09-03. Service bulletin. EQUIPMENT; WHEELS. TSB: Some 2009 ? 2019 model year Toyota vehicles with super chrome wheel finishes may become discolored and/or damaged when aftermarket cleaners, polishes, or brake dust removal products are used on wheels with super chrome finishes. Wheel cleaners and polish that contain acidic substances may damage the clear coat of the wheel, resulting in the undercoating (black) to become visible. |
| T-TT-0551-19 | 2019-07-15. Service bulletin. EQUIPMENT. TT: Some customers may experience an Entune? update pop-up message after every key cycle. |
| ZKF_Toyota POL19 | 2019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE; EQUIPMENT. Customer Support Program: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a proposed class action settlement, Toyota is announcing a Customer Support Program to provide coverage for the sliding door center hinge assembly. Although the sliding door center hinge assembly is covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever occurs first), we at Toyota care about each customer?s ownership experience. Toyota is providing additional coverage for repairs related to sliding door center hinge assembly. Only those repairs that are related to internal functional concerns of the sliding door center hinge assembly that impede the closing and/or opening operations of the sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement. |
| ZKF_Toyota POL19 | 2019-07-15. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR; EQUIPMENT. Customer Support Program: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a proposed class action settlement, Toyota is announcing a Customer Support Program to provide coverage for the sliding door center hinge assembly. Although the sliding door center hinge assembly is covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever occurs first), we at Toyota care about each customer?s ownership experience. Toyota is providing additional coverage for repairs related to sliding door center hinge assembly. Only those repairs that are related to internal functional concerns of the sliding door center hinge assembly that impede the closing and/or opening operations of the sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement. |
| ZKD_Toyota POL19 | 2019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT; STRUCTURE. Customer Program Support: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a proposed class action settlement, Toyota is announcing a Customer Support Program to provide coverage for the power sliding door cable sub-assembly. Although the power sliding door cable sub-assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever occurs first), we at Toyota care about each customer?s ownership experience. Toyota is providing additional coverage for repairs related to the power sliding door cable sub-assembly. Only those repairs that are related to internal functional concerns of the power sliding door cable sub-assembly that impede the closing and/or opening operations of the power sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement. |
| ZKD_Dealer Packa | 2019-07-15. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT; STRUCTURE. Dealer Package: Certain 2011 ? 2018 Model Year Sienna Vehicles Coverage for the Power Sliding Door Cable Sub-Assembly (Vehicles equipped with power sliding doors ONLY). In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a class action settlement, Toyota is announcing a Customer Support Program to provide coverage for repairs to the power sliding door cable sub-assembly. Although the power sliding door cable sub-assemblies are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs to the power sliding door cable sub-assembly. Only those repairs that are related to internal functional concerns of the power sliding door cable sub-assembly that impede the closing and/or opening operations of the power sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement. |
| ZKE_Toyota POL19 | 2019-07-15. Service bulletin. EQUIPMENT; FUEL/PROPULSION SYSTEM. Customer Support Program: In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a proposed class action settlement, Toyota is announcing a Customer Support Program to provide coverage for the fuel filler door hinge and pin. Although the fuel filler door hinge and pin are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever occurs first), we at Toyota care about each customer?s ownership experience. Toyota is providing additional coverage for repairs related to the fuel filler door hinge and pin. Only those repairs that are related to internal functional concerns of the fuel filler door hinge and pin that impede the closing and/or opening operations of the power sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement. |
| ZKE_Dealer Packa | 2019-07-15. Service bulletin. EQUIPMENT; STRUCTURE. Dealer Package: Certain 2011 ? 2018 Model Year Sienna Vehicles Coverage for the Fuel Filler Door Hinge and Pin. In our continuing efforts to ensure the best in customer satisfaction, and pursuant to a class action settlement, Toyota is announcing a Customer Support Program to provide coverage for repairs to the fuel filler door hinge and pin. Although the fuel filler door hinge and pin are covered by Toyota?s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers? ownership experience. Toyota is providing coverage for repairs to the fuel filler door hinge and pin. Only those repairs that are related to internal functional concerns of the fuel filler door hinge and pin that impede the closing and/or opening operations of the sliding door in manual and/or power modes are covered. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement. |
| T-SB-0068-19 | 2019-07-15. Service bulletin. FUEL/PROPULSION SYSTEM; EQUIPMENT. TSB: Some 2011 ? 2018 model year Sienna vehicles may exhibit a condition where the fuel lid door is loose or not flush against the vehicle body, which may prevent the driver side slide door from opening. This condition may be caused by a broken fuel lid door hinge. Follow the Repair Procedure in this bulletin to address this condition. |
| T-TT-0543-19 | 2019-07-08. Service bulletin. EQUIPMENT. TT: While performing the retrofit TSB, and creating the USB stick, it is critical that all files that are included in the .zip folder are extracted in the root directory (not in any folders) of the USB drive. |
| T-SB-0055-19_Rev | 2019-06-24. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. TSB: Entune? 3.0 Audio is now available with additional features such as Apple CarPlay® and Amazon Alexa? for 2018 model year Camry, Camry Hybrid, and Sienna vehicles. Follow the Software Update Procedure in this bulletin to install these new features. NOTE Performing this update may change certain head unit operation conditions. For a full list of changes, see System Limitations and FAQ. |
| T-SB-0057-19_Rev | 2019-06-24. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TSB: REVISION NOTICE May 24, 2019 Rev1: ? The entire bulletin has been updated. Any previous printed versions of this bulletin should be discarded. The procedure in this Service Bulletin is a full reformat of the multimedia system. Failure to follow the procedure exactly as written may cause damage to the head unit. This reformatting changes the system from a Phase 2 to a Phase 3 system, which includes Apple CarPlay® and Amazon Alexa?. This reformat requires all linked files and folders extracted from the zip file to be placed onto the root directory of the USB flash drive, otherwise damage to the head unit will occur. NOTE ? This procedure is a two-part process that includes an automatic file download from the USB flash drive once it is inserted into the USB port. Once the headlight flash step is performed, the system will begin the installation of the downloaded files. ? Performing this update may change certain head unit operation conditions. For a full list of changes, see System Limitations and FAQ. NOTICE Failure to follow the Software Update Procedure exactly as written may cause damage to the head unit. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.